Hi I have a question, what do you do to prevent a situation like this ... You open the door to the inside of the room and the bad guy is hiding behind the corner that the door swings into, as you are about to enter he pushes the door forcefully back at you and smacks you full force then pulls out a pistol and starts to fire at you...?

Normally to operator that has the door side in a dynamic entry has to "Body clear" the door. meaning he uses his body to slam the door up agenst the wall to he hear a slam, he then knows that the door hit the wall or some furniture, then he clears behind it. if there is a person hiding behind the door the operator will feel this while he body clear the door, hopefully hitting the person so hard with the door that he drops a potential weapon.

If the person in hiding is still able to quickly use a gun the entry team member that first spot him have to call for help and solve the situation as fast as possible

Sounds like you need to be quite tough to do that, throwing your body into a door, I bet you need to drink your calcium and build some muscle. I'm just very interested in special forces and how cqb operates, I'm a civilian but maybe someday I'd like to join the army so it can't hurt to discuss for the future eh?

We always kicked, rammed or blew the door. If you kick or ram the door, you wait on either side of the doorway for the door to rebound off the wall and start back before attempting to enter. If you blow the door, there won't be anyone standing nearby, they'll be laid out on their back.

If you have `cleared' all the rooms and met no resistance, you and your entry team have probably kicked in the door of the wrong house.
(Murphy's Cop Laws)

The greatest enemy of a good plan is the dream of a perfect plan. (Von Clausewitz)

There are techniques for entry that you should practice on every entry for perfect cqb that would not allow an individual to fuck with you from behind a door. The force should pin the person with force of the door and your body in a forward motion.

There are techniques for entry that you should practice on every entry for perfect cqb that would not allow an individual to fuck with you from behind a door. The force should pin the person with force of the door and your body in a forward motion.